Mast spray rig



Dec. 26, 1944. ,7 c. J. GRIFFITH 1 2,365,755

- MAST SPRAY RIG Filed Jan. 2, 1943 4 Sheets-Sheet l C. J. GRIFFITH MASTSPRAY RIG Filed Jan. 2, 1943 Dec. 26, 1944.

4 Sheets-Sheet 2 my MN 9 1944- c. J. GRIFFITH 2,365,755

MAST SPRAY RIG Filed Jan. 2. 1943 4Sheets-Sheet s Dec. 26, 1944.

I C. J. GRIFFITH MAST SPRAY RIG 4 Sheets-Sheet 4 Filed Jan. 2, 1943Patented Dec. 26.1944

UNITED STATES PATENT} OFFICE lass-r sraar are a clam-a J. Grlflith,Dlmondale, mien, assignor to Food Machinery Corporation, San Jose,Calla, a corporation of v Application January 2, 1943, Serial No.411,185

2 Claims. This invention relates to mast spray rigs and particularly tosuch rigs as are adaptable for use in horticultural spraying.

nozzles are pointed as to both vertical and horizontal 8 arecontrollable by the operator of the tractor drawing the rig; ofproviding such above the rig, and in which the directions said 7 a rigin which the nozzles are mounted on an will be made manifest in thefollowing description taken in connection withthe, accompanyingdrawingainwhich:

Fig. 1 is a side elevational view of a preferred embodiment of theinvention. This view shows the invention incorporated in a trailer whichis hitched to a tractor, shows the standpipe inan upright position, andillustrates the manner in which the spray rig may be controlled by theoperatorpf the tractor.

Fig. 2 is a fragmentary plan view of the trailer shown in Fig. l, withthe 'standpipe thereof 1 reclining position.

Fig. 3 is an enlarged fragmentary rear e1 tional view of Fig. 1, showingthe nozzles turned laterally of the trailer.

Fig. 4 is an enlarged front elevational view of the trailershown'in Fig.1, and taken on the line 4-! thereof.

Fig. 5 is an enlarged fragmentary perspective view of the controlmechanism of the invention.

Fig. 6 is a diagrammatic perspective viewillustratinginbrokenandfulllinestheoperative spray to penetrate dc'epinto the tree along the lines of the branches.

Fig.9showsthenoulesofmy p yri inclined upwardly uniformly to causethespray de livered therefrom to uniformly reach the under surfaces of theleaves engaged thereby.

Fig. 10 shows the nozzles of my spray rig adjusted at varying angles togive a maximum spread to the spray delivered therefrom.

Referring specifically to the drawings, the preferred embodiment of theinvention disclosed therein comprises a spray rig II, which includes atrailer 13 having a frame I mounted on wheels IS, and having a tongue orhitch II, by which the trailer is hitched-to a tractor II for thepurpose of operating the rig II. The tractor fl 4hasaseatliinwhichtheoperatormaysitwhile operating both the tractor andthe spray ri as showninFigJ.

Provided on-tbe frame is a tank II and a housed pump 2!, the latterbeing actuated bypower delivered thereto from the motor of the tractorilthroughashaftlgforapurposetobe made clear hereinafter. Fixed on therear end ofthetankilandsupportedbyrodsii area pair-ofarms Iiunitedattheir outer endsby anangleironl'l. Providedcentrallyontheangle iron2'! is a socket II which opens rearwardlyandhasapinflforciosingtherearopeningin so this socket when desired.

Theupperrearedgeodthetankilisrein forced by a metal strap ll, which ispreferably welded thereto and has mounted centrally thereon a bracket ithaving rearward extending ears 32 between whichjs pivotally mounted atongue 33 ofa collar. Fixedinthecollarflasbyasetscrewalisabearingtnbeflofastandpipe meansfl.Thelowerendofthebearingtube itisadaptedtoswingintoplaceinthesocketzl andbe trapped therein by the pin 19 when the Rotatably mounted in the andinoperative positions respectively, of the con- I 4 trating theoperation of my invention in horticultural spraying.

Fig. 8 shows the spray rig of my invention with standpipe means 31 isrotated about its pivotal connectionwiththeearslltobringtbismeans intothe upright position in which it is shown in Figs. 1, 3 and 5..

bearin tube 36 is a standpipe ll, having fixed thereon a sprocket 4!which is disposed just above the upperend ofthetubeilandaplmalityofnonlesllhaving frames 43 which are pivoted as at44 to cars 45 provided as by welding on thestandpipe ll (see prayin andis connected by a flexible hose l6 toanangleflttingllonthestandpipelltothe nozzles inclined downwardly to cause the with spraying'liquid 4|,this collar having a cam responsive disc" tive position; the cam .'.88=is'jdisposed'ii as; shown character of spray delivered from the nozzle.

The vertical angles at which the nozzles 42 deliver their spray isadapted to be controlled through a rod 50 having collars 5| adjustablyfixed thereon by set screws 52,-qeach,of theseecollars being pivotallyconnected to one of the no zle sub; 71 porting brackets 43.

The lower end of the rod 50 is connected by 40 a link 55 to a collar 56slida-bly provided on th e standpipe 40 a short distance above thesprocket 5'! Upper and lower ends of the stanu pel closed, and sprayliquid from the tank is sup- 15.

'anism support '65, including an'uppenhorizontal member 66 o'n'Which ismounted brackets-6T and 68.' Bracket 6'! is fore and aft' alignment witha flange bra'cket GF provided on the bracket 3|, whereas the bracket 58is in fore and after; alignment with abraeket' 10 provided on thereinforcing strap'BII. Each of the brackets 61, 68, 69 and Ill has a"machine screw 'Il permanently fixed" therein" to'eXtend-horizontall'yfrom a face thereof as'shownin' Figs; 3, 4 and 6; Disposedlongitudinally over the trailer I Sis-a control' mechanismffi includingan'outer tube l6, whichis rotatably mounted in'fbe'aring l'ln :Y and18Qthese having downwardly extending-"lugs l9 and 80respectively,'xthese lugs being adaptedto be secured on a'pair'ofthelmaehine'. screws .H V by. a pair of relatively long "nuts-85and86,so-as-"f" to support the control means 15 either pn the brackets61 and 69*or the -bracketsf68 and lll; The rearfendof the tube 'lfi has'fiXe'd -the'reto 1 a collar 8T having' provided "thereon "an"involute"=1 cam aa coo eratin with the: collar-81 to prevent longitudinalmovement btweerr the tube 216 and-the bearing 11," i" a 'eollaf- 89fiire'd ito this tube on theopposite-side-df 'zthe bearing'f'11;

when the oontro1 nrechanism1 5 is' mountedasw aforesaid, on thebrackets" sl 'and 3 BQZ-itis Op'-' erative position for "controllingtthoperation? of the rig l2. The control means is shdwnili -this i'positionin dotted lines'ffin i iF-i'g. 6:i' When" this smounted onbracketslaiflfiand 5, 102. shown r-n'ifull lines 'in "Figs. :2 1 and I6,:it1'is in': in operative position; for the"- pui pose of permittingthe-standpipe rrieans'31 to be foldedsintotreclin- 9: ing position,'afsshowri in Fig'f -2 and asziwill he described 'hereinafterz l1 When;the c'ontr'oi mechanism-I15 in ent ire.-

in Figl l ju'st under ithe ed-gef-rof ithevcamcr sponsive disc 51;'sdlthatrotation'r. ofxthe 5 tube I6 shifts this disc and the collarfifion 'which it is mountedverticallyson the StandpiD,e':Q.-:f:1*

Slidably disposed inside the'tub'e I5 is 18. smaller metal .Jtubei;.90,i having-y secured ..the.rein iapchain through: a,-;slot' 9 2iormejdin,.-the tube 90- opp site a-portionof ;,.the chain .9 'whenthezcontro means I5 i in o e t e; uQ iQ a a o s i thetteeth of the ,snrk tfi tart n-th ou h t ts? q:me ins re at ththe the n a kri is a collar94 having pins S S'Which'ektend 'into 7 5 t ts ra ar i n a tn ispossible] to other 9 8;;about the axis of the tube 90, however, has

'o efl'ect on the latter ,but rotates the tube 16 nd the collar 56vertically on the standpipeAO Rotationotthe. tube 90 is prevented by xt't I, teeth of the sprocket 4| into tandpipe means disposed in an uptwith the js right position and the control mechanism ,15 inoperative'position, andwiththe tank, 211 contain inga suitable supply of:spray liquid,v the spray rig I2 is ready to be hooked'up as shown in'Fi1 to a ,tractor I1, and operated to' deliver spray onto the foliage oftrees as' illustrated in Figs. 8, 9 and 10, Wl'ule theynozzles 42areshown turned rearwardly in Figyl this is merely forthe purpose ofbetter showing] the structure, these nozzles are normallyturnedlaterally to spray a irowoftrees as the spray rig-l2 moves pastthese.

During this-,travel'by the spray rig, the operator of the tractor 18manipulates the lever 9 8 so as to modify the angles at whieh thenozzles 42 direct e r spray niany Wait t atheim choose- For instance -hemay. set these nozzles as shown in Fig.; and then hetmayfichangetheseangles to thOSerSh OWn in Fig-,9, this being done by rocking the lever98 slightly about theaxis of the tube vH5, On the other hand, hen ayvvish to turn. the nozzles forwardly or rearwardly 'to direct the spray;at difierent 1 surfaces r n hi hhe rainozzles is qm ished ba ed 1 setscre,ws;52 in the colla collarson h Z2178; t dili z nozzles l2 i's'notfreuuntly no ssary,'fahd means is h rei s 1 9 ae i fi while the rig 'isin motion;

others. I i mode oi,

, When preparing'the ng 'ior I lin w a lithe-meter n control .lines inswung about its 'pivotalconnection to "the bracket to said nozzles whileassays the s'talndpipe ts inoperative means 31 primarily as a mast forsupporting the nozzles and controlling their attitudes.

It is also to be noted that while my invention is primarily designed forhorticultural spraying operations, it is not necessarily limited to thisuse, but may be employed by suitable adaptation for delivering liquid insolid streams from one or a more nozzles mounted on the mast thereof,and the attitude of the nozzle or nozzles be manually controlled'by thenovel control mechanism of the invention,

What is claimed is: a

1. In combination: a base; a mast rotatable thereon in upright position;a nozzle mounted on said mast for angular adjustment relative thereto;a-cam follower vertically slideable on said mast; means connecting saidcam follower to said nozzle to accomplish the aforesaid adjustment ofsaid nozzle by moving said cam follower up-or down on said mast; a gearfixed on said mast; two concentric horizontally extending shafts mountedon said base; a rack provided on one of said shafts and adapted to bedisposed in meshing relation with said gear and a cam fixed on the otherof said shafts and adapted to engage with said cam follower, said shaftsbeing operable from a remote control point to translate said rack andthereby rotate said mast or to rotate said cam and thereby effect anangular adjustment of said nozzle relative to said mast.

2. In combination: a base; a mast rotatable thereon in upright position;a nozzle mounted on said mast for angular adjustment relative thereto;a. cam follower vertically slidable on said mast; means connecting saidcam follower to said nozzle to accomplish the aforesaid adjustment ofsaid nozzle by moving said cam follower up or down on said mast; a gearfixed on said mast;

two concentric horizontally extending shafts mounted on said base; arack provided on one of said shafts and adapted to be disposed inmeshing relation with said gear; a cam fixed on the other of said shaftsand adapted to engage with said cam follower, said shafts being operablefrom a remote control point to translate said rack and thereby rotatesaid mast or to rotate said cam and thereby effect an angular adjustmentof said nozzle relative to said mast; and unitary means at said remotecontrol point for selectively actuat..

ing said shafts.

- CLIFFORD J. GRIFFITH.

